aboutsummaryrefslogtreecommitdiff
path: root/docs/devel
diff options
context:
space:
mode:
authorPeter Maydell <peter.maydell@linaro.org>2018-01-22 13:20:14 +0000
committerPeter Maydell <peter.maydell@linaro.org>2018-01-23 10:08:05 +0000
commitee86981bda9ecd40c8daf81b7307b1d2aff68174 (patch)
treee4a3a109a9c40705cdc42035aa8db9c64a9e005c /docs/devel
parentee264eb32c14f076c964fc34ee66f6f95cce2080 (diff)
migration: Revert postcopy-blocktime commit set
This reverts commits ca6011c migration: add postcopy total blocktime into query-migrate 5f32dc8 migration: add blocktime calculation into migration-test 2f7dae9 migration: postcopy_blocktime documentation 3be98be migration: calculate vCPU blocktime on dst side 01a87f0 migration: add postcopy blocktime ctx into MigrationIncomingState 31bf06a migration: introduce postcopy-blocktime capability as they don't build on ppc32 due to trying to do atomic accesses on types that are larger than the host pointer type. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'docs/devel')
-rw-r--r--docs/devel/migration.rst14
1 files changed, 0 insertions, 14 deletions
diff --git a/docs/devel/migration.rst b/docs/devel/migration.rst
index 015a9ebdf7..bf97080dac 100644
--- a/docs/devel/migration.rst
+++ b/docs/devel/migration.rst
@@ -401,20 +401,6 @@ will now cause the transition from precopy to postcopy.
It can be issued immediately after migration is started or any
time later on. Issuing it after the end of a migration is harmless.
-Blocktime is a postcopy live migration metric, intended to show how
-long the vCPU was in state of interruptable sleep due to pagefault.
-That metric is calculated both for all vCPUs as overlapped value, and
-separately for each vCPU. These values are calculated on destination
-side. To enable postcopy blocktime calculation, enter following
-command on destination monitor:
-
-``migrate_set_capability postcopy-blocktime on``
-
-Postcopy blocktime can be retrieved by query-migrate qmp command.
-postcopy-blocktime value of qmp command will show overlapped blocking
-time for all vCPU, postcopy-vcpu-blocktime will show list of blocking
-time per vCPU.
-
.. note::
During the postcopy phase, the bandwidth limits set using
``migrate_set_speed`` is ignored (to avoid delaying requested pages that